Finding the Fourth Proportional to 397,926.36, 549,139.80 and 216,640.44
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Solution
The fourth proportional to 397,926.36, 549,139.80 and 216,640.44 is: 298,964.58
Step by Step Solution
- Step 1: Write the proportion equation
397,926.36 : 549,139.80 = 216,640.44 : x - Step 2: Convert to fraction form
397,926.36/549,139.80 = 216,640.44/x - Step 3: Cross multiply
397,926.36x = 549,139.80 × 216,640.44 - Step 4: Simplify right side
397,926.36x = 118,965,887,893.51 - Step 5: Solve for x
x = 118,965,887,893.51/397,926.36 - Step 6: Final answer
x = 298,964.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.